陈兴品,陈丹,孙洪福,王丽霞.冷轧形变量和退火温度对Cu-44%Ni 合金的微观组织及织构演变的影响[J].稀有金属材料与工程,2018,47(7):1958~1964.[Chen Xingpin,Chen Dan,Sun Hongfu,Wang Lixia.Effects of cold rolling reduction and annealing temperature on microstructure and texture evolution of Cu-44%Ni alloy[J].Rare Metal Materials and Engineering,2018,47(7):1958~1964.]
冷轧形变量和退火温度对Cu-44%Ni 合金的微观组织及织构演变的影响
投稿时间:2016-12-25  修订日期:2017-05-27
中文关键词:  冷轧变形量  再结晶  Cu-44%Ni 合金  织构  微观组织
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      研究了冷轧变形量和退火温度对Cu-44%Ni合金中立方织构的形成及微观组织演变的影响。结果表明增大变形量和提高退火温度均有利于立方织构的形成,而且在变形量大于90%和退火温度高于900 ℃的条件下,可以得到非常强的立方织构。另一方面,随着变形量的增加,退火孪晶(Σ3晶界)和大角度晶界降低;但是在等温退火中,随着退火温度的增加,Σ3晶界和大角度晶界先迅速的增加,然后逐渐减少。冷轧变形量99%的Cu-44%Ni 合金在1100 ℃高温退火1h后可以获得了99.8%的立方织构,并且大角度晶界和退火孪晶界分别为2.5%和1.3%。
Effects of cold rolling reduction and annealing temperature on microstructure and texture evolution of Cu-44%Ni alloy
英文关键词:cold rolling reduction  recrystallization  Cu-44%Ni alloy  texture  microstructure
英文摘要:
      The effects of cold rolling reduction and annealing temperatures on the formation of cube texture and microstructural evolution have been investigated in Cu-44%Ni alloy. The results showed that the recrystallized cube texture is strengthened by either increasing the rolling reduction or increasing the annealing temperature. And the strong cube texture can be observed for the severely cold-rolled (> 90%) alloy after annealing at high temperature (> 900 °C). On the other hand, high-angle grain boundaries (HAGBs) and Annealing twin boundaries (Σ3 boundaries) decreases with the increase of rolling reduction. However, during isochronal annealing, the trend of Σ3 boundaries is consistent with that of HAGBs, which firstly increase during recrystallization process and then decrease with further increasing temperature. After annealing at 1100 °C for 1 h, the 99% cold-rolled Cu-44%Ni revealed that the fraction of the cube texture is 99.8% and the fractions of HAGBs and Σ3 boundaries are 2.5% and 1.3%, respectively.
作者单位E-mail
陈兴品 重庆大学 材料科学与工程学院 xpchen@cqu.edu.cn 
陈丹 重庆大学 材料科学与工程学院  
孙洪福 重庆大学 材料科学与工程学院  
王丽霞 重庆大学 材料科学与工程学院  
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